Burnishing machine



Nov. 25, 1930. L. J. BAZZONI 1,782,302

BURNISHING MACHINE Fild Jan. 29. 1929 //Vl/E/VTOR E 116D; I

Patented Nov; 25, 1930.

ewis J. mizzcsfiim swAMPsoo ifi'r, ivilissaoiiusmlcbeg Ass IG NoR To whiten snoii my L "PAT E NTLOFFICE:

CHINERY ojoitrojlea'if oiig oerefliesou, NEW JERSEY,.A oonro mmion onmaiwf'f at e se:

MACHINE .l

ep iicetidn fiiee m aty" 29, 192911 Serial my. 335372.

3 3 This inyehtioii relates td hurnishiiig Ina-v Chiil'? and-is illustrated as emb died in a machine for hurnishlng or settin p; the edges played on Lduis heelsi of. top lifts {sucl1,;f0r example, asthose emc "Owing to .the smallradius) ofcurvature of po tions of a top lift for a Louis} heel, and the proximity ofthe top'liittoxthe cover of theheel, theperipheral surfaces of the top lift may be set on ordinary edge setting only Withcohsidetable difliculty. In holding Whit-having a small'rtdiu's of curvature.

a ainst a reciprocatirig'edge setting tool, the

operatbr m'ust beezitremely careful that the tool dees not accidentally slidefovei' an abruptly curved portion and mar the cover for the heelihy -alra pid'succession of blows imparted sidewis'e ofthe heel-' hefore he can regain proper control of tlie'WO'I'kB Moreover, "the convex work-engaging surface of; a tool cornmonly used In a machine employlng an oscillating: tool maiybu rnish'the edge of a a CC between theltool and top lift, leaving a series- Worktotheoperating t0olsbutwhich is at- "tended with the Well-known adVanth-ges of a rapidly oscillating tool arising'irom its to fie ' andfroinovenlent. Iniaccordance with this object of the invention the illustrated Inachine comprise'sa rotating tool havilig'a concafye burhishing surface to faoilitate the pres: entation of thework thereto and which tool is constructed ai'id arranged alternately to hurnish the Work in opposite directions.

To thisend the concave burnishing element provided with a plurality of burnishing rolls, "which it partially enoases; andwhich are driven upon the rotation ofpthe' concave burnishing element, the rolls being arranged so as momentarily to supplantthe burnishing action of the concave burnishing surface by a bu i n' hingfla'ction the Opposite direction. fiehc'oeaetlfei-toblki 3 rotatedifiicontaetwitha piece ofvt ork, it is burnished alternatelyin opposite directions, although the burnishing elements of: the illustratedi machine rotate about their respective axesfin the same angu-i "lar direction. The "radius"ofcuryature of the concaveburnishingsurface is substantially equal to the greateet curvature of heels commonly operated upon; By thus; provid-f 111g i burmslnng tool the workengagingsur-t I face'oi'i: Which 1s contouredslmilarly to the heel to' he operatedupou, the 'eXtent of 0011- tact betweeii the tool 'and the woikiis in creasedytherehy insurihg a more smoothly biirnished peripheral surfacejon the lifter heel to be operatedupon." Furtlierrnore as theoperator holds the work against sucha concave surface it tends to remain in contact therewith at itshighes't point.

When a soles of shoes, the operatormay err in presenting the sole edge to the tool lby 'substantially the Width of the creaseghetween the upper and the sole Without ing ui irig the upper! On the other hand, the peripheral surface of a top lift attached to a Wood heel having a cover is finished so that it is sub- 7 machine having a reciprocating burnishmjg tool. is used to set the edges of stantially continuouswith the outer surface V oit the cover, or'With the remaininglifts of the heel if it is made entirely of leather; Henca ztslight erroroi the part of the opersetting tool might easily result inm arring difiiculty and in accordance with another teeturefof the 1nvent1on,-theillustrated Gator-iii presentingthe top lifttotheedge V the adjacent surface. 'lobbviate the aboye burnishing tool has been rovidedqwith means adjustahly fizted; thereto and con- 'structed and arranged to aline the attaching a surface of a top lift withthe end face of the 7 tool as the top lift is held against said means.

To thi send, in the illustrated embodiment of the invention, this ineans comprises ajgage in threadedengagenieht With the tool, which gage may be adjustedso as to vary the Width of the burnishing surface ofthe tool in accor-dance with the thickness of thetop liftto betreated. y f These and other objects andf eatureeof the emanate will behest .uriderstoo'd from the following description when read in connection with the accompanying drawings, in which Fig. 1 is a side elevation of a burnishing machine embodying my novel burnishing tool;

Fig. 2 is an end elevation showing only the tool;

3 is a sectional elevation, taken along the line IIIIII of Fig. 2, showing part of the machine frame;

Fig. 1 is a sectional elevation taken along the line IV-IV of Fig. 3; and

Fig. 5 is a fragmentary section showing a heel held against the tool in operative position.

A tool arbor 6 (Fig. is journaled in a frame 8 and carries a tool body 10 which is held on a tapered end 12 of the arbor by a screw 14k and associated bushlngs 16 one of which is slit, as shown in Fig. 2. to provide a tight wedge fit between the tool body 10 and the tapered end 12 of the tool arbor 6 as the screw 14 is made up. As the tool arborfi is rotated, burnishing rolls 18 rigidly connected to the outer ends of spindles 2O journaled in bearings 22 in the tool body 10 are rotated bodily therewith. The rolls 18 also rotate about their own axes, which rotation is derived from their bodily rotation by virtue of the geared connection of t is spindles to the frame of the machine through pinions 24 which are carried by the spindles 22 and which run in mesh with a ring gear 26 secured to the frame by three screws 28. Provision is made in shaping the rolls 18 for preventing oil, escaping from the bearings 22 in which the spindles 20 are journaled, from running to the work-engaging surfaces of the rolls. This end is attained. in the illustrated embodiment of the invention, through the use of a peripheral groove 30 3) in the intermediate portion of therolls. it is apparent that any oil flowing toward a burnishing roll along a spindle 20 will not flow past the peripheral groove 30 but will accumulate at the periphery of the left-ban face of the roll and be thrown therefrom by the effect of centrifugal force created by t e rotation of the roll.

A ring-shaped burnishing member 32 having a concave inner burnishing surface 34 is fixed by screws 36 (Figs. 1 and 2) to two lat erally extending diametrically opposed lugs 38 which are integral with the burnishing tool body 10. The end surface of the lastmentioned burnishing member 32 is in alinement with the outer end faces of the burnishing rolls 18, and the peripheries of these rolls are substantially tangent (Fi 2) to the concave work-engaging surface 34 of the burnishing member 32. A guide 40 is in threaded engagement with the hurnishing tool body 10, as indicated at 4:2, and may be held in any desired position of axial adjustment by means of lock screws 44 threaded into the guide 40 and bearing against the tool body 10. The annular end face 46 of the guide member, as shown in Fig. 5, may be accurately adjusted with respectto the end faces 48 of the burnishingmembers, so that the attaching face 50 of the top lift 52 may be alined therewith for the purpose herei11 before set forth. A housing 54 surrounds that part of the tool body in which the r0- tating spindles and pinions are mounted, preventing the entry of dirt in the vicinity of the working parts and the egress of oil which might otherwise be thrown from the rapidly rotating parts.

It is to be noted from Fig. 3 that the diameter of the \vorleengaging portions of the burnishing rolls 18 is substantially greater than the pitch diameter of the pinions which drive them. As the tool body 10 is rotated by the arbor 6, the burnishing rolls 18 are also rotated in the tool body about their own axes, owing to their connection to the ring gear 26 through the pinions 24 which run in mesh about the gear 26 as the tool rotates. If the rolls 18 were made equal in diameter to the pitch diameter of the pinions 24, they would merely roll about a piece of work presented thereto just as the pinions rotate about the ring gear 26. However, since the rolls are of substantially greater diameter than that of the pinions which drive them, their peripheral speed is proportionately greater than that of the pinions; but since the peripheral motion of the rolls'18 at the point of engagement with the work is in a direction opposite to that of the concave burnishing surface 3 with respect to a stationary piece of work, the burnishing action of the rolls 18 will be in a direction opposite to that of the concave burnishing element 32. Thus, the burnishing action of the burnishing member 32 is supplanted by the opposite burnishing action, as indicated by the arrows in Fig. 2, of the burnishing rolls 18 as the burnishing tool rotates past a piece of Work held thereagainst. The tool arbor 6, and hence the tool body 10, may be driven from any suitable source of power by means of a belt 56 engaging the pulley 58 fixed to the arbor 6.

In the operation of the machine the gage 40 is first adjusted so that when the tread surface of a top lift of a heel to be operated upon is held thereagainst the attaching surface is in alinement with the end surfaces 43 of the bnrnishing elements, as indicated in Fig. 5. Such an adjustment precludes the possibility of the covering for a wood heel, or the lifts in a corresponding position in a leather heel, being marred or damaged by the burnishing elements. After power has been applied to the machine and the burnishing toolrotated, the periphery of the lift, except the breast portion, maybe set by holding tatable burnishing tool, and a plurality of burnishing rolls rotatably mounted in said tool, the work engaging surfaces of said tool and said rolls being surfaces of revolution having like elements.

15. In a heel burnishing machine, a rotatable burnishing tool, a plurality of burnishing rolls rotatably mounted in said tool, the work engaging surfaces of said tool and said rolls being surfaces of revolution having like elements, connections between said tool and rolls causing a rotation of the latter when the tool is rotated, and means for rotating the tool.

16. In a heel burnishing machine, a burnishing tool having a concave work engaging surface, and a burnishing roll mounted in said burnishing tool, the work engaging surfaces of said burnishing tool and roll being surfaces of revolution having like elements.

17 .'In aheel burnishing machine, a burnishing tool having a concave work engaging surface, a plurality of burnishing rolls mounted in said burnishing tool, the work engaging surfaces of said burnishing tool and rolls being surfaces of revolution having like elements, means for rotating said rolls operated by rotation of the tool, and means for rotating the tool.

18. In a heel burnishing machine, a burnishing tool having a concave work engaging surface, a plurality of burnishing rolls rotatably mounted in said burnishing tool, the work engaging surfaces of said burnishing tool and rolls being surfaces of'revolution having likee'lements, geared connections be tween the rolls and the tool for causing the rolls to be rotated when the burnishing tool is rotated, and means for rotating the tool.

19. In a heel burnishing machine, a burnishing tool comprising; a rotatable concave element and a convex element carried by said concave element, the work engaging faces of said elements being surfaces of revolution having like elements and being substantially tangent. I

20. In a machine for burnishing top lifts of heels, in combination, a burnishing tool,

means in threaded engagement therewith constructed and arranged to regulate the width of the work-engaging surface of the tool according to'the thickness of the top lift to be burnished, and means for securing said last-mentioned means in adjusted position on the tool.

21. In a heel burnishing machine, in combination, a burnishing tool and means adjnstably fixed thereto constructed and arranged to aline the attaching surface of a top lift with the end face of the tool as the lift is held against said means.

22. In a heel burnishing machine, in combination, an annular burnishing tool and means within said tool constructed-and arranged adjustably to vary the width of the burnishing surface of the tool.

23. In a machine for burnishing the top lifts of Louis heels, a burnishing tool comprising a rotatable burnishing member having a concave worlnengaging face the radius of curvature of which is substantially the same as the greatest radius of curvature of the periphery of the. lift to be burnished, and rotating burnishing rolls partially incased in said burnishing member arranged momen tarily to supplant the burnishing action of the burnishing member to the work by a burnishing action in a direction opposite to that of said burnishing member.

24:. In a heel burnishing machine, a burnishing tool comprising a rotatable body, a burnishing member fixed in the body, burnishing rolls journaled in said body and partially enclosed by said burnishing member, means for imparting rotation to the rolls relative to said burnishing member as it is rotated, and a housing about said body encasing said means.

25. In a heel burnishing machine, a burnishing tool comprising a rotatable body, a burnishing member having a concave Workengaging surface fixed to'said body, a plurality of burnishing rolls journaled in the body and tangent to the work-engaging surfacerof the burnishing member. means for rotating the rolls operated by the rotation of the body, and means for rotating the body.

26. In a heel burnishing machine, means for burnishing a piece of work held there- -against alternately in opposite directions comprising a rotating burnishing element having a concave worlrengaging surface, a plurality of burnishing rolls the peripheral motion of which at the point of contact with the work is opposite to that of the concave burnishing element, means for driving said rolls by the rotation of said concave burnishing element, and means for rotating said concave burnishing element.

27. In a heel burnishing machine, a burnishing tool comprising a rotatable body, a burnishing member having a concave workengaging surface fixed to said body, a plurality of burnishing rolls j ournaled in the body and substantially tangent to the work-engaging surface of the burnishing member, and connections between said rolls and said burnishing member constructed and arranged to drive the rolls upon rotation of the burnishing member at a greater peripheral velocity than that of the work-engaging surface of the concave burnishing member.

28. In a heel burnishing machine, a burnishing tool comprising a rotatable body, a burnishing member having a concave Workengaging surface fixed to said body, a plurality of burnishing rolls journaled in said body substantially tangent to the Work-engaging surface of the burnishing member,

and connections betweensaid; rolls and said 1 burnishing, member constructed and ar ranged to drive therolls in the same angular direction of rotation asthat of thebur-- V 5 nishing member but at a greater peripheral 29; In a'heel burnishing machine, a bur- V nishing tool comprising a rotatable body, a burnishing member fixed to said body, burnishing rolls j ournaled insaid body arranged momentarily to supplant the burnishlng action of the burnishing member as the tool is rotated, a gear, and pinions operativelyassociated with said rolls and meshing with 1 said gear for turning said rolls as the tool is rotated with respect to the gear. I

80. Ina heel burnishing machine. a burnishing tool comprising a rotatable body, a burnishing member having a concave workg0 engaging surface fixed to said body, burnishing rolls ournaled in said body and substantiallyv tangent to said concave surface arranged momentarily to supplant the bur-. nishing action of the burnishing member as the tool is rotated, a gear, and pinions operatively associated with said'rolls and mesh ing with said gear, said pinions having a pitch diameter less than the diameter of the rolls whereby the peripheral velocity of the rolls exceeds the velocity of the concave burnishing surface.

In testimony whereof I have signed my name to this specification.

LEWIS ,J. BAZZONI. 

